383812011993 has 8 divisors (see below), whose sum is σ = 512005360000. Its totient is φ = 255746669328.

The previous prime is 383812011959. The next prime is 383812012033. The reversal of 383812011993 is 399110218383.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 383812011993 - 2¹⁰ = 383812010969 is a prime.

It is a super-2 number, since 2×383812011993² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383812016993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31994338 + ... + 32006331.

It is an arithmetic number, because the mean of its divisors is an integer number (64000670000).

Almost surely, 2^383812011993 is an apocalyptic number.

It is an amenable number.

383812011993 is a deficient number, since it is larger than the sum of its proper divisors (128193348007).

383812011993 is a wasteful number, since it uses less digits than its factorization.

383812011993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64002671.

The product of its (nonzero) digits is 279936, while the sum is 48.

The spelling of 383812011993 in words is "three hundred eighty-three billion, eight hundred twelve million, eleven thousand, nine hundred ninety-three".